How many grams of magnesium metal will react completely with 5.2 liters of 4.0 M HCl? Show all of the work needed to solve this problem.

Question

Mg (s) + 2 HCl (aq) yields MgCl2 (aq) + H2 (g)

Answer 1

mols HCl = M x L = ?
Using the coefficients in the balanced equation, convert mols HCl to mols Mg.
Now convert mols Mg to g. g = mols x atomic mass.